Apparatus for making cord-tire skeletons.



I N." w. MCL APPARATUS FOR MAKINGCO n E SKELETONS. APPLICAJ'IOND FILED 020.113.1914; 1,250,!) 1 6 I Patente e0. 18, M17.

- SHEET 1.

N.- w. 'McLEOD.

APPARATUS FOR MAKING :CORD TIRE SKELETONS.

APPLICAUON FlL-ED DECJB. I914- Patented Dec. 18,1917.

- 2 SHEETS-SHEET 2' was NELSON W. MGLEOD, OF ST. IEUIS, MISSD'ULR-l', lit,-

Till-SHE ASSIGNMENT$, T0

AMERICAN lltQTORS EIGHIGAII.

(lUlvlPiLNY, 0F DETEEOZT, JJIECI L'IGJFQI, A GORPGRATION fill HEABATUS 530B.- Iz IAZZXBFG- EiZZELETQN'S.

i 4! h essence T0 aZZ whom it may concern:

Be it known that 1, Nelson W. lrlollson, a citizen of the United States oi America, a resident of the city of St. Louis, of Missouri, have invented certain new and useful Improvements in Apparatus for i l hiking Cord-Tire Skeletons, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part or" this specification.

My invention re ates to impr vernents in the art of making tires, and more specifically stated to an apparatus for use in the menufacture of cord tire skeletons. One of the objects of the invention is to produce an proved means for holding the cord elements during the process of manufacturing such skeleton.

Another object is to produce a cord holding'device having rows of supporting ele ments adapted to extend th ough the inar-- gins of a cord Web which is substantially 'fi in cross-section. the supporting elei -ents be ing so arranged that the web may be'produced by Winding cord diagonally across the support in substantially straight lines; instead of by Winding the cord in arcuate paths around a mandrel conforming to he shape of a tire.

The invention also comprises details of construction including cord holding elements detachably securecl'to a support tire forming elements adapted to be substituted for said cord holding elements.

Figure I is :1 side elevation of device eznbodying the features of my invention for making corclribbons.

Fig. H is an enlarged fragmentary View illustrating' oppositely inclined cord elements wound onto the periphery of the elevice shown in Fig. l.

Fig. III is a detail View illustrating slight modification.

Fi 1V is a diagraininatical View of the cord windings shown in Fig. ll.

Fig. V is an enlarged transverse section showing the ribbon produced by Winding cord onto the annular support shown in Fig. I.

Fig. V1 is an enlarged fragmentary cross section showing a marginal portion of the support and a marginal portion of the ntel) as it appears when the cords are riveted to a connecting rin Fig. VH- is a View similar to Fig, V1 the cord holding; support.

Vlll crosssection showing; one of the tire form ing rings attached to the margin of the annular support, and also showing a tire iioring roller for shaping the tire structure on he annular supper in ti accompanying drawings, which illustrate. i' y invention in its preferredg forin A designates a rotatable annular sup,= port or mandrel and l designates cord holdmg rings (letacliably secured to the margins of saidannular support. 2 designates yieldable latch members securing the cord holding rings l. to annular support. Gord holding pins slideoly' fitted to the cord holding rings 1, adapted to projectffroin the periphery oi said rings, as shown in i, ll and Springs'e tend to more the cord holding etire position, shown in Fig. VI. Each cord holding 1 is provided with a circulai' row cord holding pins; 3, and all of these pins may be retained in their operative positic by expansible rings 5 fitted to the inner faces of the cord holding rings and engaging the inner ends of the cord holding pins, as shown in Figs. 1 and V.

Ber'orewinding th cord onto the sup porting elements, tubular rivets 6 are placed over the pro ecting" portions of the cord holding pins 3, and these rivets 'are preferably connected by means of rings 7 made ring being removed from the of vulcanized rubber or any other suitable mcteri i. ii. sheet of raw rubber 8 is preferably placed over the outer ends of the rivets 6 and seated on. the connectin rings Y. The inner cord ply B is pre erably formed by Winding corcl partially around the rivets 8 to produce a zig-zag Winding consisting of cord elements, each of which lies at an oblique angle to the; side edges of fabric layer. @Wing to the location of the circular rows of pins 3, and since said rows are substantially equal in diameter, a Web substantially iiat or straight in crosssection'inay'be forined'on the support by winding cord diagonally across the support in substantially straight lines. A sheet of rubber is preferably placed over the coral ply l3 and the outer cord. ply C is i" "n wound onto the rivets 6.; so that its d eleiiients cross and lie at an angle to he cord elements of the cord ply B,

i an l d. fragmentary pins to their inoperany desired number of plies. Upon the com- Any suitable winding mechanism may be utilized in winding the cord onto the rivets and the completed structure may include pletion of the winding operations the pins 3 are withdrawn from the rivets '6 and the outer ends of said rivets are upset to securely connect the ends of the cord elements to the connecting rings 7. The cord holding pins 3 may be readily withdrawn from the rivets 6 by removing or contracting the eX- pansible rings 5, thus permitting the springs 4 to shift said pins 3 to their inoperative positions (shown in Fig. VI). It will be noted that each individual cord element n'iay be firmly secured to the connecting "rings 7 by the rivets 6, so that each cord element'is a unit securely held at its ends,

carrying out my method may be substan tially flat or straight in cross-sectlon, and it will be apparentthat a web of this kind may be readily formed by winding cord onto the rivets 6 which project from the periphcry of the annular support.

After the rivets have been upset to secure the cord elements to the connecting members 7 the cord holding rings 1 are detached from the annular support A, and tire beads 10 are then roughly formed at the free side margins of the fabric, see Fig. VII. Raw rubber 11 is applied to the ribbon for the production of the tread of the tire, and tire forming rin s 12 are secured to the margins of the annular support, as shown by dotted lines in Fig. V, and full lines Fig. VIII. Thesetire forming rings may be secured by the latch members 2 which also serve as means for attaching the cord holding rings to the annular support. Theraw tire structure arranged on the annular support, is preferably shaped by means of a roller X (Fig. VIII) and after this operation, it is removed, shapedto the configuration of a finished tire, and vulcanized.

. I claim e-- V 1. A 09rd structure making apparatus comprising, a support, a row of cord holding members fitted to said support, said cord holding members being movable to release the cord structure from said support, and {)neans for operating said cord holding mem- 2. A cord structure making apparatus comprising, a support, a row of cord holding members fitted to said support, said cord holding membersbeing movable to release the cord structure from said support, and means for operating said cord holding memestate bers, said means including-springs tending comprising, an annular support, a row of cord holding members movably fitted to said support, and a ring for operating said cord holding-members.

5. A cord structure making apparatus comprising, an annular support, a row of cord holding members fitted to said support,

. said cord holding members beingpdapted to project into elements of the cord structure to secure them to the support while the cord is being wound, and the said cord holding members being movable to release the cord structure from said support, and a ring for operating said cord holders.

- 6. A cord structure making apparatus comprising, a support provided with cord holding members arranged in circular rows which are substantially equal in diameter, the cord holding members being movable relative to said support and'means for operating said cord'holding members.

'7. A cord structure making apparatus comprising, a support provided with a row of rivet holders adapted to receive elements of the cord structure, and means for shifting said holders to release them from the cord structure.

8. A cord structure making apparatus comprising, an annular support provided with a row of rivet holders adapted to receive the elements of the cord structure, and means for shifting said holders to release them from the cord structure.

9. The cord structure making apparatus comprising, a support provided with a row of rivet holding pins adapted to hold rivets .onto which the fabric is wound, and means for shifting said pins to withdraw them from the rivets, thereby releasing the cord structure from said support.

10. A cord structure making apparatus comprising, a support provided with two rows of rivet holding pins adapted to secure the margins of the cord structure, and means for Withdrawing said pins from the cord structure to release said structure from said support.

cord holding members in cure the cord elements drawiusaid cord ho ,dmg' pins to release the cor structure from said support.

comprising, an annular support; provided and means forv withwith rows of substantially radial cordholdmovably fittedlto' said for moving said cord the axis of. said annular ing pins which are sup ort, and means hol ing pins toward support to release the cord structure from- -sa1d SIEPOIL I 13. cord structurefmaking. apparatus comprising, an annular support prov-i with two annular rows of cord holding members adapted to project from said support,

and means for moving sa d cord holding members toward the axis of said annular support to release the cord structure there- 14. cord structure making apparatus comprising,

members fitted to said support, an expansi le for holding said eir operative po-' sitions, and sprin cord holding mem ers to t I positions. I .12. A'cord structure making apparatus comprising,v

comprisin axis of saidannular support, 17. A cord structure making comprisin ,'a support hers detac ably secured tire forming members adapted to e tuted for said'cord holding members. an annular support, an annular I row of cord holdin tendin niove said 1r inoperative '15.=A cord an annular support, cord holding rings detachably, secured to said sup-f pins prqecting from port, and cord holding said cord holding rings I 16. A cord structure making ap ratus an annular support, co -holdmg rings etachably' secured to said support and cord structure mai ing apparatus 35' holding pins projecting from sai Q cord holdin rings, said cord holding pins being mova Ie toward and-away, from the:

ap aratu's cord ho P substi- McLEQl).

ding memto saidsup ort, and 

